D13231: fix build against OpenSSL 1.1

[Andreas Sturmlechner]

asturmlechner added a reviewer: Kopete.

REPOSITORY
  R434 Kopete

REVISION DETAIL
  https://phabricator.kde.org/D13231

To: knauss, #kopete
Cc: asturmlechner, jriddell, rdieter, kopete-devel, himanshuvishwakarma, cochise